Compared to the first two months of the final quarter of 2006, December has been challenging for Research in Motion Ltd. (NASDAQ:RIMM, TSX:RIM) shareholders. After rallying in powerhouse fashion to its 52-week high in the last week of November, the stock hit resistance and retreated almost 12% last week. A support rally closed out the week, with the stock closing near the top of its weekly tick. Trading will again be active and volatile this week as the company announces its Q3 earnings. RIM is a current Stock Trends Portfolio holding and has returned 56% since its BUY signal on September 21.